CN117214779A - Transformer fault monitoring device - Google Patents
Transformer fault monitoring device Download PDFInfo
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- CN117214779A CN117214779A CN202311464362.1A CN202311464362A CN117214779A CN 117214779 A CN117214779 A CN 117214779A CN 202311464362 A CN202311464362 A CN 202311464362A CN 117214779 A CN117214779 A CN 117214779A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000005192 partition Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 60
- 239000000523 sample Substances 0.000 claims description 45
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 10
- 238000009413 insulation Methods 0.000 description 14
- 239000003292 glue Substances 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000010079 rubber tapping Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a transformer fault monitoring device, which belongs to the technical field of power monitoring equipment and comprises a box body and a box cover, wherein openings for cables to pass through are formed in the middle parts of the box body and the box cover, two partition plates are detachably arranged in the box body, movable plates are arranged on the side surfaces of the partition plates, which are far away from the partition plates, two clamping pieces for clamping the cables are arranged on the side surfaces of the movable plates, and first transmission pieces for driving the two movable plates to move away from or approach each other are arranged on the box body.
Description
Technical Field
The invention discloses a transformer fault monitoring device, and belongs to the technical field of power monitoring equipment.
Background
A transformer is a device for changing an ac voltage using the principle of electromagnetic induction, and the main components are a primary coil, a secondary coil, and an iron core (magnetic core). In electrical equipment and wireless circuits, it is often used as a step-up voltage, a matching impedance, a safety isolation, etc. In a generator, an electrical potential is induced in the coil, whether the coil is moved through a magnetic field or a magnetic field is moved through a stationary coil. In both cases, the value of the magnetic flux is unchanged, but the amount of the magnetic flux crossing the coil varies, which is the principle of mutual induction. A transformer is a device that converts voltage, current and impedance using electromagnetic mutual induction. After the transformer fails, the fault of the tapping lead of the transformer is required to be found by using a universal meter probe, and the universal meter probe is a method for finding faults such as virtual connection, disconnection and the like of the internal lead or coil of the transformer by using two measuring leads of the universal meter and two probes. The probe adopts thicker big needle, and it can puncture the solid insulating layer of the internal tapping lead of transformer and not buckle, and after the insulating layer of probe point was punctured, if not to the probe point carry out insulation reinforcement, easily form partial discharge to destroy transformer insulation.
The patent with the publication number of CN115856485B discloses a distribution transformer fault detection device, which comprises a base plate, be provided with two symmetrical distribution's stop gear on the bottom plate, two be provided with pushing mechanism and winding portion between the stop gear, winding portion includes guiding mechanism and sliding mechanism, guiding mechanism is provided with two, guiding mechanism includes the mounting panel, the both ends of mounting panel all are provided with the guide rail, the guide rail is convex structure.
The above patent is to pierce the insulation layer of the tapping lead through the conical part of the lower end of the probe, then move the cylinder, make the lower ends of the pipe and probe pierce the insulation layer of the tapping lead, and make the probe contact the conductive copper wire, at this time, fault detection can be performed on the tapping lead, after detection is completed, the insulation glue is injected into the piercing hole from the pipe, and then covered by the insulation tape, although fault detection of the lead can be completed by adopting the method in the above patent, the lead between the two limit wheels cannot be guaranteed to be in a straightened state when the lead is pressed by the limit wheels, so that the probe cannot be effectively supported when piercing the insulation layer, and relative offset may occur between the tip of the probe and the lead, thereby influencing the operation of piercing the insulation layer, and the insulation glue cannot accurately fall onto the piercing point, at the same time, the appearance volume of the device is large, and the internal lead of the transformer cannot be detected well, so that improvement is required.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a transformer fault monitoring device.
The invention realizes the aim through the following technical proposal, the transformer fault monitoring device comprises a box body and a box cover, wherein the middle parts of the box body and the box cover are provided with openings for the cables to pass through, two baffle plates are detachably arranged in the box body, the side surfaces of the baffle plates are provided with movable plates, the side surfaces of the movable plates, which are far away from the baffle plates, are provided with two clamping pieces for clamping the cables, the box body is provided with a first transmission piece for driving the two movable plates to be far away from or close to each other, the baffle plates are provided with driving pieces for controlling the relative positions of the clamping pieces and the cables, so that when the first transmission piece drives the movable plates to be far away from the baffle plates, the two clamping pieces on the same movable plate can clamp the cables and straighten the cables, a first semicircle ring and a second semicircle ring are arranged between the two baffle plates, the first semi-circular ring and one side of the second semi-circular ring are respectively provided with a first guide rod and a second guide rod which are arranged in a sliding way with the box body, the first guide rod and the second guide rod are respectively provided with a fixed plate, the box body is provided with a second transmission piece for driving the two fixed plates to be close to or far away from each other, the first guide rod is internally provided with a probe in a sliding way, the first guide rod is internally provided with an adjusting piece for controlling the relative position of the probe and the cable, one end of the probe penetrates through the first semi-circular ring and penetrates into the cable, the second guide rod is internally provided with a storage cavity, the storage cavity is internally provided with a movable sealing piece in a sliding way, the outer side of the second guide rod is provided with a mounting table, the mounting table is provided with a storage box, the mounting table is provided with a guide hole communicated with the storage box and the storage cavity, the second semi-circular ring is provided with a guide hole communicated with the storage cavity, the positions, corresponding to the injection holes and the positions, of the probes penetrating into the cables, on the first semicircular ring and the second semicircular ring are respectively provided with a semicircular diversion trench.
Preferably, the clamping piece comprises a fixed block, a movable clamping block, a first limit bolt and a first spring, wherein the fixed block and the movable plate are kept relatively fixed, the first limit bolt and the first spring are both provided with two lugs, two sides of the movable clamping block are both provided with lugs, one end of the first limit bolt passes through the fixed block and then is in threaded connection with the lugs, the first spring is sleeved on the outer side of the first limit bolt, two ends of the first spring are respectively abutted against the fixed block and the movable clamping block, and one side of the movable clamping block is provided with an arc-shaped notch matched with a cable.
Preferably, the fixed block is provided with a waist-shaped hole, the movable plate is provided with a second limit bolt for positioning the fixed plate, and one end of the second limit bolt passes through the waist-shaped hole and is in threaded connection with the movable plate.
Preferably, the driving piece comprises a mounting plate and an inclined inserting rod, the inclined inserting rod is fixedly mounted on the partition plate through the mounting plate, the inclined inserting rod is not perpendicular to the sliding direction of the movable plate, a locating pin for limiting the maximum sliding distance between the movable clamping block and the fixed block is arranged on the movable plate, a through groove for avoiding the inclined inserting rod is formed in the movable plate, and an inclined inserting hole matched with the inclined inserting rod is further formed in the movable clamping block.
Preferably, the first transmission piece includes first screw rod and second screw rod, have on first screw rod and the second screw rod and revolve the opposite screw thread of direction, and the middle part of both respectively with two fly leaf threaded connection, the one end that first screw rod and second screw rod are close to each other has connection boss and bolt, and the one end that both keep away from each other is rotated with the box body and is connected.
Preferably, the probe is the ladder structure, the one end that first guide bar kept away from first semicircle ring has spacing platform, the regulating part includes endless screw and second spring, endless screw threaded connection is at the tip of first guide bar, the both ends of second spring are contradicted with spacing platform and probe respectively to apply the effort of keeping away from first semicircle ring to the probe.
Preferably, the second guide rod comprises a first connecting section and a second connecting section, the first connecting section is fixedly connected with the second semicircular ring, the second connecting section is slidably arranged with the box body, the first connecting section, the second connecting section and the first guide rod are fixedly connected with the fixing plate through bolts, and the storage cavity is located in the first connecting section and the second connecting section.
Preferably, the movable sealing piece comprises a sealing rod, a third spring and a drawing block, wherein a sealing conical surface is arranged at the joint of the storage cavity and the injection hole, the other end of the sealing rod extends to the outer side of the second connecting section and is fixedly connected with the drawing block, a sealing convex ring is arranged in the middle of the sealing rod, the third spring is sleeved on the outer side of the sealing rod, the third spring applies acting force for blocking the storage cavity and the injection hole to the sealing rod, and the sealing convex ring keeps a state of blocking the storage cavity and the diversion hole under the acting force of the second spring.
Preferably, two arc heating plates are arranged in the semicircular diversion trenches, and binding posts extending to the outer sides of the first semicircular ring and the second semicircular ring are arranged on the arc heating plates.
Preferably, the second transmission piece comprises a third screw rod and a fourth screw rod, threads with opposite rotation directions are arranged on the third screw rod and the fourth screw rod, the middle parts of the third screw rod and the fourth screw rod are respectively in threaded connection with the two fixing plates, one ends of the third screw rod and the fourth screw rod, which are close to each other, are also provided with a connecting boss and a bolt, and one ends of the third screw rod and the fourth screw rod, which are far away from each other, are rotationally connected with the box body.
Compared with the prior art, the invention has the beneficial effects that:
through setting up division board, fly leaf holder and first driving piece, rely on first driving piece and fly leaf to drive two holders and remove, the holder can carry out two-point clamp to the cable to straighten it, support by first semicircle ring and second semicircle ring monitoring point of cable afterwards, monitor the cable after puncture the insulating layer by the probe, pour into the outside to the cable with the insulating glue from the filling hole after the monitoring, reuse arc heating piece solidifies it, in order to reach insulating reinforcement's effect.
When monitoring the cable in the transformer, the cable can be directly put into from the opening, the two ends of the cable are not required to be disassembled to penetrate through the box body, the whole size of the device is small, the cable can be monitored at any position in the middle of the cable, the operation is simple, and the practicability is high.
Drawings
FIG. 1 is a schematic diagram of a transformer fault monitoring device according to the present invention;
FIG. 2 is a cross-sectional view of a transformer fault monitoring device according to the present invention;
FIG. 3 is a second cross-sectional view of a transformer fault monitoring device according to the present invention;
FIG. 4 is a schematic diagram showing an assembled structure of the parts in the case of the present invention;
FIG. 5 is an exploded view of the fly leaf, spacer, clamping member and driving member of the present invention;
FIG. 6 is a schematic view of the first semicircle and the second semicircle in the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 3 at A;
fig. 8 is a partial enlarged view at B in fig. 3.
Reference numerals: 1. a case body; 2. a second transmission member; 3. a first transmission member; 4. a cable; 5. a clamping member; 6. a box cover; 7. a partition plate; 8. a movable plate; 9. a notch; 10. a first screw; 11. a connecting boss; 12. a plug pin; 13. a second screw; 14. a sealing rod; 15. drawing blocks; 16. a second guide bar; 17. a storage bin; 18. a third screw; 19. a movable seal; 20. a first semi-circular ring; 21. a second semicircle ring; 22. binding posts; 23. a fourth screw; 24. a first guide bar; 25. a probe; 26. a first spring; 27. a lug; 28. a movable clamping block; 29. an oblique inserted link; 30. waist-shaped holes; 31. the second limit bolt; 32. a first limit bolt; 33. a fixed block; 34. a mounting plate; 35. a through groove; 36. an inclined jack; 37. a positioning pin; 38. an arcuate recess; 39. an arc heating plate; 40. a mounting table; 41. a deflector aperture; 42. a third spring; 43. sealing the convex ring; 44. a storage cavity; 45. a second connection section; 46. a first connection section; 47. sealing the conical surface; 48. an injection hole; 49. a second spring; 50. a headless screw; 51. a limiting table; 52. semicircular diversion trenches; 53. and a fixing plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 8, a transformer fault monitoring device comprises a box body 1 and a box cover 6, wherein a notch 9 for a cable 4 to pass through is arranged in the middle of the box body 1 and the box cover 6, two partition plates 7 are detachably arranged in the box body 1, movable plates 8 are arranged on the side surfaces of the partition plates 7, two clamping pieces 5 for clamping the cable 4 are arranged on the side surfaces of the movable plates 8, which are far away from the partition plates 7, a first transmission piece 3 for driving the two movable plates 8 to be far away from or close to each other is arranged on the box body 1, a driving piece for controlling the relative positions of the clamping pieces 5 and the cable 4 is arranged on the partition plates 7, so that when the first transmission piece 3 drives the movable plates 8 to be far away from the partition plates 7, the two clamping pieces 5 on the same movable plate 8 can clamp and straighten the cable 4, a first semicircular ring 20 and a second semicircular ring 21 are arranged between the two partition plates 7, one side of the first semicircle ring 20 and one side of the second semicircle ring 21 are respectively provided with a first guide rod 24 and a second guide rod 16 which are arranged in a sliding way with the box body 1, the first guide rod 24 and the second guide rod 16 are respectively provided with a fixed plate 53, the box body 1 is provided with a second transmission part 2 which is used for driving the two fixed plates 53 to be close to or far away from each other, the first guide rod 24 is internally provided with a probe 25 in a sliding way, the first guide rod 24 is internally provided with an adjusting part which is used for controlling the relative position of the probe 25 and the cable 4, one end of the probe 25 penetrates through the first semicircle ring 20 and penetrates into the cable 4, the second guide rod 16 is internally provided with a storage cavity 44, the storage cavity 44 is internally provided with a movable sealing part 19, the outer side of the second guide rod 16 is provided with a mounting table 40, the mounting table 40 is provided with a storage box 17, the mounting table 40 is provided with a flow guide hole 41 which is communicated with the storage box 17 and the storage cavity 44, the second semicircular ring 21 is provided with an injection hole 48 communicated with the storage cavity 44, and the positions of the first semicircular ring 20 and the second semicircular ring 21 corresponding to the injection hole 48 and the probe 25 penetrating into the cable 4 are provided with semicircular diversion trenches 52.
As shown in fig. 4 and 5, the clamping member 5 includes a fixed block 33, a movable clamping block 28, a first limit bolt 32 and a first spring 26, where the fixed block 33 and the movable plate 8 are relatively fixed, the first limit bolt 32 and the first spring 26 are both provided with two lugs 27, two sides of the movable clamping block 28 are both provided with lugs 27, one end of the first limit bolt 32 passes through the fixed block 33 and then is in threaded connection with the lugs 27, the first spring 26 is sleeved outside the first limit bolt 32, two ends of the first spring 26 respectively collide with the fixed block 33 and the movable clamping block 28, one side of the movable clamping block 28 has an arc-shaped notch 38 matched with the cable 4, when the movable plate 8 is far away from the partition 7 under the action of the first transmission member 3, the driving member slowly starts to release the blocking and limiting of the movable clamping block 28, and clamps the cable 4 under the action of the first spring 26, when the first transmission member 3 drives the movable plate 8 to move in the direction far from the partition 7, the clamping members 5 on the two movable plates 8 can clamp the cable 4 directly against the first half ring 21 and then clamp the second half ring 20.
As shown in fig. 4, fig. 5 and fig. 6, the fixed block 33 is provided with a kidney-shaped hole 30, the movable plate 8 is provided with a second limit bolt 31 for positioning the fixed plate 53, one end of the second limit bolt 31 passes through the kidney-shaped hole 30 and is in threaded connection with the movable plate 8, the driving piece comprises a mounting plate 34 and an inclined inserting rod 29, the inclined inserting rod 29 is fixedly mounted on the partition 7 through the mounting plate 34, the inclined inserting rod 29 is not perpendicular to the sliding direction of the movable plate 8, the movable plate 8 is provided with a positioning pin 37 for limiting the maximum sliding distance between the movable clamping block 28 and the fixed block 33, the movable plate 8 is provided with a through groove 35 for avoiding the inclined inserting rod 29, the movable clamping block 28 is further provided with an inclined inserting hole 36 matched with the inclined inserting rod 29, and as the maximum moving distance of the movable clamping block 28 is controlled by the positioning pin 37, and the movable clamping block 28 can be smoothly inserted into the inclined inserting hole 36 when the movable clamping block 28 is close to the partition 7, so that the movable clamping block 28 is forced to the partition 7, the movable clamping block 28 moves towards the direction of the fixed block 33, the movable clamping block 4 is forced to be in the direction of the fixed block 4, the direction of the movable clamping block 28 can be driven by the inclined inserting hole 33, and the inclined inserting hole 36 can be adjusted to be moved towards the other end of the movable clamping block 4, and the movable clamping block 28 is moved towards the movable clamping block 4, and the movable clamping block 4 is driven by adjusting the length to be close to the inclined inserting rod 29, and the inclined inserting hole 4 to the movable clamping block 4, and the movable clamping block 4 is moved towards the movable clamping block 4, and the movable clamping block 4.
As shown in fig. 1 and 2, the first transmission member 3 includes a first screw 10 and a second screw 13, the first screw 10 and the second screw 13 are provided with threads with opposite rotation directions, the middle parts of the first screw 10 and the second screw 13 are respectively in threaded connection with the two movable plates 8, one ends of the first screw 10 and the second screw 13, which are close to each other, are provided with a connecting boss 11 and a bolt 12, and one ends of the first screw 10 and the second screw 13, which are far away from each other, are rotatably connected with the box body 1, and by rotating the first screw 10 or the second screw 13, the first screw 10 and the second screw 13 are synchronously rotated, so that the two movable plates 8 can be driven to slide in the box body 1, when the distance between the two movable plates is increased, the clamping member 5 can clamp and straighten the cable 4, and when the distance between the two movable plates is reduced, the clamping member 5 can loosen the clamping of the cable 4.
As shown in fig. 3 and 8, the probe 25 is in a stepped structure, one end of the first guide rod 24 far away from the first semicircle ring 20 is provided with a limit table 51, the adjusting piece comprises a headless screw 50 and a second spring 49, the headless screw 50 is in threaded connection with the end of the first guide rod 24, two ends of the second spring 49 respectively collide with the limit table 51 and the probe 25, and apply a force far away from the first semicircle ring 20 to the probe 25, the distance between the end of the probe 25 and the cable 4 can be controlled by means of the cooperation of the second spring 49 through the knob headless screw 50, when the first semicircle ring 20 and the second semicircle ring 21 collide and press the cable 4, the headless screw 50 is rotated in one direction, so that one end of the probe 25 slowly punctures an insulation layer of the cable 4 and contacts a conductive core, the other end of the headless screw 50 or the probe 25 is connected with an external circuit, and the cable 4 is electrified, after the fault monitoring is completed, the headless screw 50 is reversely rotated, and the probe 25 is reset under the action of the second spring 49 and the cable 4 is ready to be wrapped with insulation.
As shown in fig. 3 and 7, the second guide rod 16 includes a first connection section 46 and a second connection section 45, the first connection section 46 is fixedly connected with the second semicircular ring 21, the second connection section 45 is slidably disposed with the box body 1, the first connection section 46, the second connection section 45 and the first guide rod 24 are fixedly connected with the fixing plate 53 through bolts, the storage cavity 44 is located in the first connection section 46 and the second connection section 45, the first guide rod 24 and the second guide rod 16 are fixedly connected with the fixing plate 53, the fixing plate 53 is driven by the second transmission member 2 to enable the two to approach or separate from each other, and the second guide rod 16 is of a split structure, so that installation of the storage cavity 44, the sealing rod 14 and the second spring 49 can be conveniently processed.
As shown in fig. 3 and 7, the movable sealing member 19 includes the sealing rod 14, the third spring 42 and the drawing block 15, the junction of the storage cavity 44 and the injection hole 48 has the sealing conical surface 47, and the other end extends to the outside of the second connecting section 45 and is fixedly connected with the drawing block 15, the middle part of the sealing rod 14 is provided with the sealing convex ring 43, the third spring 42 is sleeved on the outside of the sealing rod 14, and the third spring 42 applies the acting force for blocking the storage cavity 44 and the injection hole 48 to the sealing rod 14, the sealing convex ring 43 keeps the state for blocking the storage cavity 44 and the diversion hole 41 under the acting force of the third spring 42, when the insulation glue in the fluid state is required to be injected to the outside of the cable 4, the first semicircular ring 20 and the second semicircular ring 21 keep abutting against the outside of the cable 4, the sealing convex ring 43 starts to compress the third spring 42 by pulling the drawing block 15 outwards, and the sealing convex ring 43 does not block the diversion hole 41 any more, the insulation glue in the fluid state enters the full-filled storage cavity 44, one end of the sealing rod 14 is separated from the sealing conical surface 47 and then the sealing convex ring 47 is not matched with the sealing conical surface, the sealing convex ring is not required to be uniformly injected to the sealing convex ring 43, and the sealing ring is not covered on the outside of the cable 4, or the sealing convex ring is not required to be uniformly injected to the sealing convex ring 4, and the sealing ring is required to be in the sealing conical surface is not required to be uniformly injected to the sealing ring 4, and the sealing convex ring is required to the sealing ring is required to be fully filled with the sealing conical at the sealing conical surface 4, and the sealing convex ring is not has the sealing convex ring is completely.
As shown in fig. 6 and 7, arc heating plates 39 are disposed in the two semicircular diversion trenches 52, the arc heating plates 39 are provided with binding posts 22 extending to the outer sides of the first semicircular ring 20 and the second semicircular ring 21, the binding posts 22 are connected with an external power supply, the two arc heating plates 39 maintain a circuit communication state when the first semicircular ring 20 and the second semicircular ring 21 are in contact, when the fluid insulating glue is injected to the outer side of the cable 4, the external power supply supplies power to the arc heating plates 39, so that the insulating glue is heated and solidified, and the penetrating points of the probes 25 are covered, thereby facilitating the subsequent coating of the insulating glue.
As shown in fig. 3, the second transmission member 2 includes a third screw 18 and a fourth screw 23, the third screw 18 and the fourth screw 23 have threads with opposite rotation directions, the middle parts of the third screw 18 and the fourth screw 23 are respectively connected with the threads of the two fixing plates 53, one ends of the third screw 18 and the fourth screw 23, which are close to each other, are also provided with a connecting boss 11 and a bolt 12, and one ends of the third screw 18 and the fourth screw 23, which are far away from each other, are rotatably connected with the box 1, by rotating the third screw 18 or the fourth screw 23, so that the third screw 18 and the fourth screw 23 are simultaneously rotated and can drive the two fixing plates 53 to simultaneously move, when the distance between the two fixing plates 53 is increased, the cable 4 can be placed between the first semicircle 20 and the second semicircle 21, and when the distance between the two fixing plates 53 is reduced, the cable 4 can be pressed by the first semicircle 20 and the second semicircle 21, and the insulation layer of the cable 4 is provided with support for the probe 25.
Working principle: the cable 4 to be monitored is placed at the lowest part of the notch 9, the natural length is kept, then the first transmission piece 3 is utilized to drive the two movable plates 8 to be far away from each other, the cable 4 is clamped by the two clamping pieces 5 on the movable plates 8, the cable 4 is straightened and tightened, the second transmission piece 2 drives the two fixing plates 53 to be close to each other, the first semicircular ring 20 and the second semicircular ring 21 are abutted against each other, the position of a monitoring point of the cable 4 is pressed against, the headless screw 50 is rotated to enable the probe 25 to move and enable one end of the probe to pierce an insulating layer of the cable 4, the probe 25 is abutted against the conductive core, the other end of the probe 25 is connected with a monitoring circuit, when the cable 4 is electrified, the fault monitoring effect can be achieved, after the monitoring is completed, the headless screw 50 is reversely rotated, the probe 25 is reset, the fluid insulating adhesive in the storage box 17 is enabled to be filled in the storage cavity 44 through the diversion hole 41 by pulling the pulling-out drawing block 15, the third spring 42 is enabled to drive the sealing bulge loop 14 to reset, the sealing bulge loop 43 is enabled to be filled into the insulating layer, the insulating adhesive is heated from the sealing bulge loop 43 to be covered with the insulating adhesive 39, and the insulating adhesive is heated to be wrapped in the outer side of the cable 4, and the insulating bulge is heated, and the insulating adhesive is cured, and the insulating adhesive is heated, and the insulating bulge is heated, and the insulating glue is cured, and the insulating bulge is filled in the sealing ring is filled into the sealing groove and the sealing groove is filled and the sealing adhesive is filled and the sealing.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. The utility model provides a transformer fault monitoring device, includes box body (1) and lid (6), its characterized in that, the middle part of box body (1) and lid (6) is provided with opening (9) that supply cable (4) to pass through, detachably installs two baffles (7) in box body (1), the side of baffle (7) is provided with fly leaf (8), the side that baffle (7) were kept away from to fly leaf (8) has two clamping pieces (5) that are used for centre gripping cable (4), be provided with on box body (1) and be used for driving two fly leaf (8) and keep away from each other or first driving piece (3) that are close to each other, the baffle (7) is provided with a driving part for controlling the relative positions of the clamping parts (5) and the cables (4), so that when the first transmission part (3) drives the movable plate (8) to be far away from the baffle (7), the two clamping parts (5) on the same movable plate (8) can clamp and straighten the cables (4), a first semicircular ring (20) and a second semicircular ring (21) are arranged between the two baffle (7), one sides of the first semicircular ring (20) and the second semicircular ring (21) are respectively provided with a first guide rod (24) and a second guide rod (16) which are arranged in a sliding way with the box body (1), the utility model discloses a semi-circular ring type storage device is characterized in that fixed plates (53) are arranged on a first guide rod (24) and a second guide rod (16), a second transmission piece (2) used for driving two fixed plates (53) to be close to each other or far away from each other is arranged on a box body (1), a probe (25) is arranged in the first guide rod (24) in a sliding mode, an adjusting piece used for controlling the relative position of the probe (25) and a cable (4) is further arranged in the first guide rod (24), one end of the probe (25) penetrates through a first semi-circular ring (20) and penetrates into the cable (4), a storage cavity (44) is arranged in the second guide rod (16), a movable sealing piece (19) is arranged in the storage cavity (44) in a sliding mode, an installation table (40) is arranged on the outer side of the second guide rod (16), a storage box (17) is arranged on the installation table (40), a diversion hole (41) used for controlling the relative position of the probe (25) and the cable (4), and a diversion trench (48) is arranged on the second semi-circular ring (21) and corresponds to the first semi-circular ring (48) and penetrates into the first semi-circular ring (48).
2. The transformer fault monitoring device according to claim 1, wherein the clamping piece (5) comprises a fixed block (33), a movable clamping block (28), a first limiting bolt (32) and a first spring (26), the fixed block (33) and the movable plate (8) are kept relatively fixed, the first limiting bolt (32) and the first spring (26) are both provided with two, lugs (27) are respectively arranged on two sides of the movable clamping block (28), one end of the first limiting bolt (32) penetrates through the fixed block (33) and then is in threaded connection with the lugs (27), the first spring (26) is sleeved on the outer side of the first limiting bolt (32), two ends of the first spring are respectively abutted against the fixed block (33) and the movable clamping block (28), and one side of the movable clamping block (28) is provided with an arc-shaped notch (38) matched with the cable (4).
3. The transformer fault monitoring device according to claim 2, wherein the fixed block (33) is provided with a kidney-shaped hole (30), the movable plate (8) is provided with a second limit bolt (31) for positioning the fixed plate (53), and one end of the second limit bolt (31) passes through the kidney-shaped hole (30) and is in threaded connection with the movable plate (8).
4. A transformer fault monitoring device according to claim 2, characterized in that the driving member comprises a mounting plate (34) and an oblique inserting rod (29), the oblique inserting rod (29) is fixedly mounted on the partition plate (7) through the mounting plate (34), the oblique inserting rod (29) is not perpendicular to the sliding direction of the movable plate (8), the movable plate (8) is provided with a positioning pin (37) for limiting the maximum sliding distance between the movable clamping block (28) and the fixed block (33), the movable plate (8) is provided with a through groove (35) for avoiding the oblique inserting rod (29), and the movable clamping block (28) is further provided with an oblique inserting hole (36) matched with the oblique inserting rod (29).
5. The transformer fault monitoring device according to claim 1, wherein the first transmission member (3) comprises a first screw (10) and a second screw (13), threads with opposite rotation directions are arranged on the first screw (10) and the second screw (13), the middle parts of the first screw (10) and the second screw (13) are respectively in threaded connection with the two movable plates (8), one ends, close to each other, of the first screw (10) and the second screw (13) are provided with a connecting boss (11) and a plug pin (12), and one ends, far away from each other, of the first screw and the second screw are in rotational connection with the box body (1).
6. The transformer fault monitoring device according to claim 1, wherein the probe (25) is in a stepped structure, one end of the first guide rod (24) far away from the first semicircular ring (20) is provided with a limiting table (51), the adjusting piece comprises a headless screw (50) and a second spring (49), the headless screw (50) is in threaded connection with the end part of the first guide rod (24), and two ends of the second spring (49) respectively abut against the limiting table (51) and the probe (25) and apply a force to the probe (25) far away from the first semicircular ring (20).
7. The transformer fault monitoring device according to claim 1, wherein the second guide rod (16) comprises a first connecting section (46) and a second connecting section (45), the first connecting section (46) is fixedly connected with the second semicircular ring (21), the second connecting section (45) is slidably arranged with the box body (1), the first connecting section (46), the second connecting section (45) and the first guide rod (24) are fixedly connected with the fixing plate (53) through bolts, and the storage cavity (44) is located in the first connecting section (46) and the second connecting section (45).
8. The transformer fault monitoring device according to claim 7, wherein the movable sealing piece (19) comprises a sealing rod (14), a third spring (42) and a drawing block (15), a sealing conical surface (47) is arranged at the joint of the storage cavity (44) and the injection hole (48), the other end of the sealing rod extends to the outer side of the second connecting section (45) and is fixedly connected with the drawing block (15), a sealing convex ring (43) is arranged in the middle of the sealing rod (14), the third spring (42) is sleeved on the outer side of the sealing rod (14), the third spring (42) applies a force for blocking the storage cavity (44) and the injection hole (48) to the sealing rod (14), and the sealing convex ring (43) keeps a state of blocking the storage cavity (44) and the flow guide hole (41) under the force of the second spring (49).
9. Transformer fault monitoring device according to claim 1, characterized in that two of the semicircular diversion trenches (52) are internally provided with arc-shaped heating plates (39), and the arc-shaped heating plates (39) are provided with binding posts (22) extending to the outer sides of the first semicircular ring (20) and the second semicircular ring (21).
10. The transformer fault monitoring device according to claim 1, wherein the second transmission member (2) comprises a third screw (18) and a fourth screw (23), threads with opposite rotation directions are formed on the third screw (18) and the fourth screw (23), the middle parts of the third screw (18) and the fourth screw (23) are respectively in threaded connection with the two fixing plates (53), one ends, close to each other, of the third screw (18) and the fourth screw (23) are also provided with a connecting boss (11) and a plug pin (12), and one ends, far away from each other, of the third screw (18) and the fourth screw (23) are in rotational connection with the box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311464362.1A CN117214779B (en) | 2023-11-07 | 2023-11-07 | Transformer fault monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311464362.1A CN117214779B (en) | 2023-11-07 | 2023-11-07 | Transformer fault monitoring device |
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| CN117214779A true CN117214779A (en) | 2023-12-12 |
| CN117214779B CN117214779B (en) | 2024-01-30 |
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| CN115856485A (en) * | 2023-02-28 | 2023-03-28 | 国网辽宁省电力有限公司 | Distribution transformer fault detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0192057A2 (en) * | 1985-02-22 | 1986-08-27 | Walter Rose GmbH & Co. KG | Device for making an electrically conductive contact on an insolated cable core |
| WO2011134362A1 (en) * | 2010-04-27 | 2011-11-03 | 东莞国亮电机有限公司 | Enameled aluminum wire winding and preparation method thereof |
| CN203445268U (en) * | 2013-09-28 | 2014-02-19 | 成都星河科技产业有限公司 | Multi-function interval discharge wire clamp |
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| CN117214779B (en) | 2024-01-30 |
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